Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934582AbZLGDxU (ORCPT ); Sun, 6 Dec 2009 22:53:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933310AbZLGDxS (ORCPT ); Sun, 6 Dec 2009 22:53:18 -0500 Received: from zeniv.linux.org.uk ([195.92.253.2]:51480 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934565AbZLGDxO (ORCPT ); Sun, 6 Dec 2009 22:53:14 -0500 Date: Mon, 07 Dec 2009 03:53:20 +0000 To: linux-arch@vger.kernel.org Subject: [PATCH 9/19] arm: add arch_mmap_check(), get rid of sys_arm_mremap() Cc: torvalds@linux-foundation.org, linux-kernel@vger.kernel.org User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: From: Al Viro Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2555 Lines: 89 Signed-off-by: Al Viro --- arch/arm/include/asm/mman.h | 3 +++ arch/arm/kernel/calls.S | 2 +- arch/arm/kernel/sys_arm.c | 25 ------------------------- 3 files changed, 4 insertions(+), 26 deletions(-) diff --git a/arch/arm/include/asm/mman.h b/arch/arm/include/asm/mman.h index 8eebf89..41f99c5 100644 --- a/arch/arm/include/asm/mman.h +++ b/arch/arm/include/asm/mman.h @@ -1 +1,4 @@ #include + +#define arch_mmap_check(addr, len, flags) \ + (((flags) & MAP_FIXED && (addr) < FIRST_USER_ADDRESS) ? -EINVAL : 0) diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index fafce1b..4f07168 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -172,7 +172,7 @@ /* 160 */ CALL(sys_sched_get_priority_min) CALL(sys_sched_rr_get_interval) CALL(sys_nanosleep) - CALL(sys_arm_mremap) + CALL(sys_mremap) CALL(sys_setresuid16) /* 165 */ CALL(sys_getresuid16) CALL(sys_ni_syscall) /* vm86 */ diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c index 78ecaac..3b89744 100644 --- a/arch/arm/kernel/sys_arm.c +++ b/arch/arm/kernel/sys_arm.c @@ -28,10 +28,6 @@ #include #include -extern unsigned long do_mremap(unsigned long addr, unsigned long old_len, - unsigned long new_len, unsigned long flags, - unsigned long new_addr); - /* common code for old and new mmaps */ inline long do_mmap2( unsigned long addr, unsigned long len, @@ -43,9 +39,6 @@ inline long do_mmap2( flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (flags & MAP_FIXED && addr < FIRST_USER_ADDRESS) - goto out; - error = -EBADF; if (!(flags & MAP_ANONYMOUS)) { file = fget(fd); @@ -89,24 +82,6 @@ out: return error; } -asmlinkage unsigned long -sys_arm_mremap(unsigned long addr, unsigned long old_len, - unsigned long new_len, unsigned long flags, - unsigned long new_addr) -{ - unsigned long ret = -EINVAL; - - if (flags & MREMAP_FIXED && new_addr < FIRST_USER_ADDRESS) - goto out; - - down_write(¤t->mm->mmap_sem); - ret = do_mremap(addr, old_len, new_len, flags, new_addr); - up_write(¤t->mm->mmap_sem); - -out: - return ret; -} - /* * Perform the select(nd, in, out, ex, tv) and mmap() system * calls. -- 1.5.6.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/